The form is created by taking the verb root + diq + possessive suffixes. However, because all the possessive suffixes begin with vowels, the endings are in effect –dığ, -duğ, -diy, -düy. The Q from maq changes to a ğ, as in tanımaq – tanıdığ-, or oxumaq – oxuduğ-. The K from mək changes to y, as in istəmək – istədiy-, or düşmək – düşdüy-.